Earphone charging box



FIG. 1 is a first perspective view of an earphone charging box showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view of an opening state of the earphone charging box thereof.

The broken lines in the figures depict portions of the earphone charging box which form no part of the claimed design. 

CLAIM The ornamental design for an earphone charging box, as shown and described. 